00318cam a2200169 450000500170000024500370001702000050005410000400005904400050009925000050010404100080010930000050011750000050012283000050012726000090013208200070014120260711133852.0 aDiseño de concreto reforzadob a aMcCormack, Jack C.Brown, Russell H. a a aspa a a v abc ab